Dark Part Correction VDC5 DRC. Ether USB. JPG Others DRC

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1 APPLICATION NOTE RZ/A1H Group R01AN3897EJ0200 Rev.2.00 Introduction This software package is an add-on for Human Machine Interface (hereinafter referred to as HMI) software development kit for RZ/A1 call as SDK for Camera, and supports camera input, LCD output, and image adjustment. This package enables following functions using Dynamic Range Compression (hereafter referred to as DRC) which is installed in RZ/A1H and RZ/A1M: Adjustment of dark part or light part of an image. Getting histogram. In the case of the dark part correction, even if an image is backlighting, DRC can emphasize the contrast of target. The corrected image will be stored into memory. Therefor you can use the corrected image for the image processing such as face recognition. Figure below shows the example of the dark part correction. input image image stored in memory Dark Part Correction DRC VDC5 histogram RAM RZ/A1H or RZ/A1M Figure below shows the position of this add-on on the software diagram of SDK for Camera. SDK for Camera Applications SDK for Camera application SDK for Camera with DRC application Contrast Automatic Correction Ether USB JPG Others Development tools QE for Video Display Controller 5 OS RZ/A1 Framework Middleware Device Drivers DRC e 2 studio Renesas GCC J-Link LITE ADD ON Note: This software package is available upon non-disclosure agreement. For details, contact your local sales representatives or access R01AN3897EJ0200 Rev.2.00 Page 1 of 8

2 Target Board Renesas Starter Kit+ for RZ/A1H An example of operation of Contrast Automatic Correction sample program 1) Touch dark part of display. 2) Sample program displays a frame that shows the area to obtain histogram. And histogram in the frame will be obtained. 3) After this sample program analyze obtained histogram, whole screen will be brightened to emphasize the contrast of bright part. By this, the visibility in the frame will be improved. 4) Touch the light part (clipped white). 5) Sample program displays a frame that shows the area to obtain histogram will be moved. And histogram in the frame will be obtained. 6) After this sample program analyze obtained histogram, whole screen will be darkened to emphasize the contrast of dark part. By this, the visibility in the frame will be improved. 7) Touch a part of the screen which is wanted to improve the visibility. Continue these sequences. R01AN3897EJ0200 Rev.2.00 Page 2 of 8

3 Table of Contents 1. Package Contents Software Sample program Documents Folder Structure Applying procedure Confirmation of sample program operation... 7 R01AN3897EJ0200 Rev.2.00 Page 3 of 8

4 1. Package Contents 1.1 Software This package contains the following software. Table 1-1 Software of this package No Name Folder Explanation 1 RZ/A1H Group Contrast Automatic Correction Add-on (Package) Software DRC sample program and a set of drivers that run on SDK for Camera 1.2 Sample program This package contains the following sample program. Table 1-2 Sample program of this package No Name Folder Explanation 1 Contrast Automatic Correction Sample program Software\App\application_sample \ContrastAutomaticCorrection \sample1 This program displays the image which contrast of whole area is corrected automatically to emphasize dark part and light part of selected area using histogram of the selected area. 2 SDK for Camera with DRC Sample program Software\App\application_sample \SDKforCamera\sample2 This program changes the various settings of VDC 5 / DRC according to the command input from the terminal application and performs image quality adjustment,contrast correction, and getting histogram. R01AN3897EJ0200 Rev.2.00 Page 4 of 8

5 1.3 Documents This package contains the following documents. Table 1-3 Documents of this package No Type Title Rev File Name Path 1 Release Note 2 Applicat ion Note 3 Applicat ion Note 4 Applicat ion Note RZ/A1H Group Contrast Automatic Correction Add-on Release Note RZ/A1H Group Contrast Automatic Correction Sample Program Application Note RZ/A1H Group SDK for Camera with DRC Sample Program Application Note RZ/A1H Group RZ/A1 Framework DRC Driver Application Note 2.00 (Japanese) r01an3897jj0200-rza1h.pdf (English) r01an3897ej0200-rza1h.pdf (This document) Document\ReleaseNote 1.00 (Japanese) r01an4003jj0100-rza1h.pdf (English) r01an4003ej0100-rza1h.pdf Document\Specifications\App\application_sam ple\contrastautomaticcorrection 1.00 (Japanese) r01an3867jj0100-rza1h.pdf (English) r01an3867ej0100-rza1h.pdf Document\Specifications\App\application_sam ple\sdkforcamera 1.00 (Japanese) r01an3686jj0100-rza1h.pdf (English) r01an3686ej0100-rza1h.pdf Document\Specifications\Drv\drc R01AN3897EJ0200 Rev.2.00 Page 5 of 8

6 2. Folder Structure Folder structure of this package and outline of contents are shown as follow. Table 2-1 Folder Structure an-r0an3897ej0200-rza1h-fwp : top folder readme_j.txt : Overview of this package (Japanese) readme_e.txt : Overview of this package (English) Document : documents ReleaseNote : release Notes(refer to 1.2 section) r01an3897jj0200-rza1h.pdf r01an3897ej0200-rza1h.pdf (This document) Specifications : each documents(refer to 1.2 section) App application_sample ContrastAutomaticCorrection r01an4003jj0100-rza1h.pdf : Contrast Automatic Correction Sample Program Application Note(Japanese) r01an4003ej0100-rza1h.pdf : Contrast Automatic Correction Sample Program Application Note(English) sample1 readme.txt : Sample program (ContrastAutomaticCorrection_smp1) Path description file to readme. SDKforCamera r01an3867jj0100-rza1h.pdf : SDK for Camera with DRC Sample Program Application Note(Japanese) r01an3867ej0100-rza1h.pdf : SDK for Camera with DRC Sample Program Application Note(English) sample2 readme.txt : Sample program (SDKforCamera_smp2) Path description file to readme Drv drc r01an3686jj0100-rza1h.pdf : DRC driver application note(japanese) r01an3686ej0100-rza1h.pdf : DRC driver application note(english) Software : programs App application_sample ContrastAutomaticCorrection sample1 : Contrast Automatic Correction Sample Program readme_sfboot_j.txt : Contrast Automatic Correction Sample readme(japanese) readme_sfboot_e.txt : Contrast Automatic Correction Sample readme(english) SDKforCamera sample2 : SDK for Camera with DRC Sample Program readme_sfboot_j.txt : SDK for Camera with DRC Sample readme(japanese) readme_sfboot_e.txt : SDK for Camera with DRC Sample readme(english) CMSIS_RTOS_RTX : base OS and driver for peripheral IP RTOS RTX Boards Renesas RenesasBSP drv_src drc inc r_drc.h : header file of DRC driver r_drc_pl.h : header file of DRC porting layer function porting r_drc_pl.c : source file of DRC porting layer function R01AN3897EJ0200 Rev.2.00 Page 6 of 8

7 3. Applying procedure The procedure for applying this package to the "SDK for Camera", HMI software development kit for RZ/A1 is described below. 1. Download the RZ/A1 Framework(*) and extract it. ( * RZ/A1 Framework URL: ) 2. Extract this package(an-r01an3897ej0200-rza1h-fwp.zip) 3. Overwrite the "Document" folder extracted in step 1, by same folder extracted in step Overwrite the "Software" folder extracted in step 1, by same folder extracted in step Confirmation of sample program operation Regarding the operation of sample program of this package, please replace "Blinky_smp1" with ContrastAutomaticCorrection_smp1 or "SDKforCamera_smp2" for the contents of chapter 2.4 of RZ/A1H Group, RZ/A1LU Group RZ/A1 Framework Quick Start Guide (R01AN3639) included in RZ/A1 Framework. Please implement Chapter 3 "How to apply this package to RZ/A1 Framework" before actual operation. R01AN3897EJ0200 Rev.2.00 Page 7 of 8

8 Website and Support Renesas Electronics Website Inquiries All trademarks and registered trademarks are the property of their respective owners. R01AN3897EJ0200 Rev.2.00 Page 8 of 8

9 Revision History Rev. Date Revised Contents No Type Description Remark Overall Updated supporting e2 studio to version Modification points:.cproject and.project of all sample project Aug 10, First Edition issued -

10 General Precautions in the Handling of Microprocessing Unit and Microcontroller Unit Products The following usage notes are applicable to all Microprocessing unit and Microcontroller unit products from Renesas. For detailed usage notes on the products covered by this document, refer to the relevant sections of the document as well as any technical updates that have been issued for the products. 1. Handling of Unused Pins Handle unused pins in accordance with the directions given under Handling of Unused Pins in the manual. The input pins of CMOS products are generally in the high-impedance state. In operation with an unused pin in the open-circuit state, extra electromagnetic noise is induced in the vicinity of LSI, an associated shoot-through current flows internally, and malfunctions occur due to the false recognition of the pin state as an input signal become possible. Unused pins should be handled as described under Handling of Unused Pins in the manual. 2. Processing at Power-on The state of the product is undefined at the moment when power is supplied. The states of internal circuits in the LSI are indeterminate and the states of register settings and pins are undefined at the moment when power is supplied. In a finished product where the reset signal is applied to the external reset pin, the states of pins are not guaranteed from the moment when power is supplied until the reset process is completed. In a similar way, the states of pins in a product that is reset by an on-chip power-on reset function are not guaranteed from the moment when power is supplied until the power reaches the level at which resetting has been specified. 3. Prohibition of Access to Reserved Addresses Access to reserved addresses is prohibited. The reserved addresses are provided for the possible future expansion of functions. Do not access these addresses; the correct operation of LSI is not guaranteed if they are accessed. 4. Clock Signals After applying a reset, only release the reset line after the operating clock signal has become stable. When switching the clock signal during program execution, wait until the target clock signal has stabilized. When the clock signal is generated with an external resonator (or from an external oscillator) during a reset, ensure that the reset line is only released after full stabilization of the clock signal. Moreover, when switching to a clock signal produced with an external resonator (or by an external oscillator) while program execution is in progress, wait until the target clock signal is stable. 5. Differences between Products Before changing from one product to another, i.e. to a product with a different part number, confirm that the change will not lead to problems. The characteristics of Microprocessing unit or Microcontroller unit products in the same group but having a different part number may differ in terms of the internal memory capacity, layout pattern, and other factors, which can affect the ranges of electrical characteristics, such as characteristic values, operating margins, immunity to noise, and amount of radiated noise. When changing to a product with a different part number, implement a system-evaluation test for the given product.

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